[Phil] decided he would rather ditch the fob altogether and instead implemented a passive Bluetooth keyless ... Bluetooth control over auxiliary electrical systems.

Traditionally however, the use of such passive features, for instance for reactor scram, were of limited extent, and safety systems heavily relied on active driving devices, e.g. electrical or Diesel ...

The key components are categorized into active and passive devices. Active components rely on an external power source to control or modify electrical signals. They inject power into a circuit and are ...

When first learning about and building electronic circuits, the first things all of us come across are passive components ... Memristors relate electric charge and magnetic flux linkage, which ...